Valentina Chepiga was born in Kharkov, Ukraine, on April 27th, 1962. She started bodybuilding in 1988. She won Ukrainian championships in the same year. Up to 1992 she worked as an engineer in her city. In 1992 she started working as a personal trainer and the year after she moved to Kiev, Ukraine's capital, and worked as a personal trainer.

She competed as a middleweight (from 52 to 57 kg – from 114.6 to 125.6 lbs.) in national and international championships as an amateur bodybuilder. Here you can see her contest history as an amateur.

In 1997, Valentina became a professional bodybuilder, and she took part to 1998 Ms. Olympia, held for the first time in history in Europe, and exactly in Prague, Czech Republic; she placed 12th. In 1999, she took part to Jan Tana Pro Classic, where she finished 3rd, and in Ms. Olympia, where she finished another time 12th.

The next year, new rules of IFBB female professional division allowed two categories for Ms. Olympia contest: lightweight (up to 135 lbs. - 61,2 kg) and heavyweight (more than 135 lbs.). For other contest, there were also three classes. Chepiga won 2000 Jan Tana Pro Classic (middleweight category) and Ms. Olympia (heavyweight category). In 2001, Valentina took part only to Ms. Olympia, but she finished 4th in heavyweight class. In 2002, she placed 1st in lightweight class of Ms. International.

The weight of Valentina is so near to the limit of the two classes (135 lbs. - 61,2 kg) that she compete sometime as an heavyweight and sometime as a lightweight. Valentina has a slow metabolism and she eat fonts of slim proteins like chicken breasts and egg whites, and rice and potatoes. She doesn't like to grow so much in off-season periods.